EP 2545110 A1 20130116 - NANOPOROUS POLYMERIC FOAM HAVING HIGH CELL DENSITY WITHOUT NANOFILLER
Title (en)
NANOPOROUS POLYMERIC FOAM HAVING HIGH CELL DENSITY WITHOUT NANOFILLER
Title (de)
NANOPORÖSER POLYMERSCHAUM MIT HOHER ZELLDICHTE OHNE NANOFÜLLSTOFFE
Title (fr)
MOUSSE POLYMÉRIQUE NANOPOREUSE AYANT UNE HAUTE DENSITÉ CELLULAIRE SANS NANOCHARGE
Publication
Application
Priority
- US 31239610 P 20100310
- US 2011025782 W 20110223
Abstract (en)
[origin: WO2011112352A1] A polymeric foam has a thermoplastic polymer matrix defining multiple cells, the foam characterized by: (a) the polymer matrix having greater than 50 weight-percent copolymer containing at least two different monomers at least one of which is a methacrylate monomer, each monomer having a solubility parameter lower than 20 (megaPascals)0.5 and a chemical composition where twice the mass fraction of oxygen plus the mass fraction of nitrogen, fluorine and silicon is greater than 0.2; wherein the monomers comprise at least 90 weight-percent of all monomers in the copolymer; (b) at least one of the following: (i) a nucleation site density of at least 3 x 1014 effective nucleation sites per cubic centimeter of foamable polymer composition; (ii) an average cell size of 300 nanometer or less; (c) a porosity percentage greater than 30%; (d) an absence of nano-sized nucleating additive; and (e) a thickness of at least one millimeter.
IPC 8 full level
CPC (source: EP US)
C08J 9/0071 (2013.01 - EP US); C08J 9/122 (2013.01 - EP US); C08J 2201/024 (2013.01 - EP US); C08J 2201/032 (2013.01 - EP US); C08J 2205/046 (2013.01 - EP US); C08J 2333/10 (2013.01 - EP US)
Citation (search report)
See references of WO 2011112352A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2011112352 A1 20110915; CA 2791656 A1 20110915; CA 2791656 C 20180717; CN 102791783 A 20121121; CN 102791783 B 20140402; EP 2545110 A1 20130116; EP 2545110 B1 20161123; JP 2013522391 A 20130613; JP 5833580 B2 20151216; RU 2012143158 A 20140420; US 2012321873 A1 20121220; US 9187611 B2 20151117
DOCDB simple family (application)
US 2011025782 W 20110223; CA 2791656 A 20110223; CN 201180013100 A 20110223; EP 11713542 A 20110223; JP 2012557071 A 20110223; RU 2012143158 A 20110223; US 201113578092 A 20110223